作者
Christina Tremblay, Shady Rahayel, Andrew Vo, Filip Morys, Golia Shafiei, Nooshin Abbasi, Ross D Markello, Ziv Gan-Or, Bratislav Misic, Alain Dagher
发表日期
2021
期刊
Brain Communications
卷号
3
期号
4
页码范围
fcab269
出版商
Oxford University Press
简介
Brain atrophy has been reported in the early stages of Parkinson’s disease, but there have been few longitudinal studies. How intrinsic properties of the brain, such as anatomical connectivity, local cell-type distribution and gene expression combine to determine the pattern of disease progression also remains unknown. One hypothesis proposes that the disease stems from prion-like propagation of misfolded alpha-synuclein via the connectome that might cause varying degrees of tissue damage based on local properties. Here, we used MRI data from the Parkinson Progression Markers Initiative to map the progression of brain atrophy over 1, 2 and 4 years compared with baseline. We derived atrophy maps for four time points using deformation-based morphometry applied to T1-weighted MRI from 120 de novo Parkinson’s disease patients, 74 of whom had imaging at all four time points (50 Men: 24 Women …
引用总数
学术搜索中的文章